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Oracle Solaris Administration: Common Tasks Oracle Solaris 11 Information Library |
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Oracle Solaris Administration: Common Tasks Oracle Solaris 11 Information Library |
1. Locating Information About Oracle Solaris Commands
2. Managing User Accounts and Groups (Overview)
3. Managing User Accounts and Groups (Tasks)
4. Booting and Shutting Down an Oracle Solaris System
5. Working With Oracle Configuration Manager
6. Managing Services (Overview)
9. Managing System Information (Tasks)
10. Managing System Processes (Tasks)
Managing System Processes (Task Map)
Commands for Managing System Processes
Using the /proc File System and Commands
Managing Processes With Process Commands (/proc)
How to Display Information About Processes
Terminating a Process (pkill, kill)
How to Terminate a Process (pkill)
How to Terminate a Process (kill)
Debugging a Process (pargs, preap)
Managing Process Class Information (Task Map)
Managing Process Class Information
Changing the Scheduling Priority of Processes (priocntl)
How to Display Basic Information About Process Classes (priocntl)
How to Display the Global Priority of a Process
How to Designate a Process Priority (priocntl)
How to Change Scheduling Parameters of a Timesharing Process (priocntl)
How to Change the Class of a Process (priocntl)
Changing the Priority of a Timesharing Process (nice)
How to Change the Priority of a Process (nice)
11. Monitoring System Performance (Tasks)
12. Managing Software Packages (Tasks)
14. Scheduling System Tasks (Tasks)
15. Setting Up and Administering Printers by Using CUPS (Tasks)
16. Managing the System Console, Terminal Devices, and Power Services (Tasks)
17. Managing System Crash Information (Tasks)
18. Managing Core Files (Tasks)
19. Troubleshooting System and Software Problems (Tasks)
20. Troubleshooting Miscellaneous System and Software Problems (Tasks)
Here are some tips on obvious problems you might encounter:
Look for several identical jobs that are owned by the same user. This problem might occur because of a running script that starts a lot of background jobs without waiting for any of the jobs to finish.
Look for a process that has accumulated a large amount of CPU time. You can identify this problem by checking the TIME field in the ps output. Possibly, the process is in an endless loop.
Look for a process that is running with a priority that is too high. Use the ps -c command to check the CLS field, which displays the scheduling class of each process. A process executing as a real-time (RT) process can monopolize the CPU. Or, look for a timesharing (TS) process with a high nice number. A user with superuser privileges might have increased the priority of a process. The system administrator can lower the priority by using the nice command.
Look for a runaway process. A runaway process progressively uses more and more CPU time. You can identify this problem by looking at the time when the process started (STIME) and by watching the cumulation of CPU time (TIME) for a while.
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